MATIASHUK, R. K.; TKACHENKO , I. V. The Pollen of Plants of the Shrub Layer in the Urban Green Space as an Indicator of the State of Atmospheric Air of the City (on the Example of Representatives of the Genus Forsythia). Visnyk of V. N. Karazin Kharkiv National University. Series Еcоlogy, n. 25, p. 135-156, 17 Nov. 2021.